Dr. Marielle Morissens
A graduate of ULB and cardiology specialist since 1995, I care for the full range of cardiac conditions, with particular expertise in congenital heart disease.

Practice
My practice is divided between the University Hospital of Brussels (Erasme and Hôpital Universitaire des Enfants Reine Fabiola (HUDERF) sites) and my private practice in Lasne. I offer all patients an individualized approach based on quality care in line with current scientific recommendations, the ability to perform the main cardiological examinations on-site, a wide network of specialists, and a constant commitment to ensuring continuity of care.
Expertise
- Congenital heart disease
- Valvular disorders
- Cardiac arrhythmias
- Heart failure
- Coronary artery disease
- Pregnancy and heart conditions
Technical exams
- ECG
- Stress test
- Echocardiography
- Holter monitoring
- Pacemaker and defibrillator checks
- Transoesophageal echocardiography
Fees
I am fully conventioned, applying INAMI rates and offering third-party payment in private practice and at the hospital.
Practice Locations
Hôpital Erasme
Consultations on Tuesday and Wednesday.
Cabinet privé
Consultations on Thursday.
Hôpital Universitaire des Enfants Reine Fabiola (HUDERF)
Consultations on Monday in the afternoon.